Highly reduced maturation with new LED light

A new type of LED-light gave neither maturation nor autumn depression for the salmon.

Fish farmer Leiv Slagstad at Nordfjord Laks has tried out a new type of LED-light at one of his farming sites. The objective was to see if a certain type of light could influence the degree of maturation of the salmon. After having evaluated the results post season, mr. Slagstad can reveal very interesting results.
“Previously we had a rather high and variable degree of maturation, however the new LED-light gave us practically no maturation at aal. The quality of the light seems to have a larger influence than I expected”, states mr. Slagstad.

No depression
An additional positive effect from using the new light is that the fish do not suffer from an “autumn depression”.
“Quite often we have seen a drop in feeding after turning on the lights in the autumn. This often influences the growth, leading to a lost potential for growing. This is quite unfortunate, since the sea often holds a good temperature for growth, which can be exploited for growth”, states mr. Slagstad.
With the new light, there was a seamless transition from the natural to the artificial light, with full throttle in the feeding all the way.
These results at Nordfjord Laks have been reported after a full year of ingrowing fish.
The new LED-light has the ability to be submerged to the preferred depth, with possible adjustments for fish activity. En fordel med LED-lys er det lave strømforbruket, som ved Nordfjord Laks har vært på 1,6 Watt pr kvadratmeter.